ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.
One of a set of tools we're offering as a way to say thank you for being a part of the community.
http://abstractspaces.wordpress.com/2008/05/19/use-today-and-me-in-calculated-column/
http://blog.pathtosharepoint.com/2008/08/14/calculated-columns-the-useless-today-trick/